Wrench



(No Model.)

s. EooKEY su N. J. REITER.

WRENGE.

Patented Apr. 19, 18187.

N. rzzns. whmumogmpher. wa-mngm, 0.o.

UNITED STATES PATENT OFFICE.

SAMUEL HOOKEY AND NICHOLAS J. REITER, OF NATRONA, PENNSYLVANIA.

WRENCH'.

SPECIFICATION forming part of Letters Patent No. 361,287, dated April 19, 1887.

Application filed J anunry 10, 1887. Serial No. $223,910. (No model.)

To all whom it may concern:

Be it known that we, SAMUEL HooKEY and NICHOLAS J. REITER, citizens of the United States, residing at Natrona, in the county of Allegheny and State of Pennsylvania, haveinvented certain new and useful Improvements in Monkey-Vrenches; and we do declare the following to bea full, clear, and exact description of the invention, such as Will enable othersskilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and iigures of reference marked thereon, which form a part of this specilication'.

The special object ofthe invention is to make a vmonkey-wrench so that the sliding j aw may be held in the left hand, adjusted with the right, and lockedautomatically, as hereinafter described.

"We will Iirst describe our improvements in connection with the drawings, and then point out our invention in the claim.

Figure l of the drawingsis a plan View of my improved monkey-wrench; Fig. 2, a 1ongitudinal section thereof', and Fig. 3 a perspective view of the nut-latch.

In the drawings, A represents the ordinary wrench-bar, with the iixed jaw a and the rack a', made oblique to the top ai.

B is the movable jaw, whose shank bis made hollow, so as to slide on bar A, and provided with the swiveled screw G. On thelatter we place the traveling nut D, so that when a tine adjustment of the jaws is desired it may be placed at any suitable point on the screw between the points b b2 of the jaw B. We make this nut in the form of an eccentric or lever, whose long arm` d is provided with suitable teeth on its under side to engage those on the bar A, the teeth on the latter being preferably on a slant or at an oblique angle to the top of l bar A. Under any circumstances'the toothfaces of the nut and the bar must be in such local relation to cach other that the teeth of one will fit between the teeth of the other.

The short arm d is rcughened on the outer lone end cfa spring, E, which is then coiled around the screw C, and the other end made fast at b3 to the jaw B.

' By holding the handle in' the left hand, pressing with the thumb on the outer end of arm d', and placing the forenger under jaw B, the latter may be moved up on the bar A until it grasps the nut, which is to be turned on or off its screw.

j We are aware that the hollow sliding jawrof a wrench has been so combined with .a rack and dog as to require said jaw to be raised 1n order to disengage the dog from the rack; but

What we claim as new, and desire to secure by Letters Patent, is-

The combination, with a hollow sliding wrench-jaw, rack-bar, and longitudinal pivot, of a latch, D, arranged to turn transversely on or with said pivot, having the subjacentlytoothed arm d and thumb-arm d', and provided with a retracting spiral spring on said pivot, whereby the latch may be unfastened by a lateral movement and held from the rack by the thumb of the hand which moves the slidngjaw, as set forth. p

In testimony whereof we alli Koni-signatures in presence of two witnesses.

SAMUEL HooKEY. NICHOLAS J. REITER.

Witnesses:

JOHN LONG, ALIsoN MITCHELL. 

